MAV MOS PROB. OF VISIBILITY <= 1/2 MI (%)
Valid 2100 UTC Monday
Saturday Sunday Monday Tuesday
00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

PROB. OF VISIBILITY <= 1/2 MI: The probability that the prevailing visibility at the specified time will be less than or equal to 1/2 mile.